( Hadoop Hadoop Config File: conf/hadoop-env.sh: Hadoop enviroment conficore-site xm: Namenode p and port conf/hdfs-site xml: HDFS Data Block Setting conflmapred- site xml: JobTracker IP and port conf/masters master IP conf/slaves Slaves PHadoop 48 Hadoop Config File: conf/hadoop-env.sh：Hadoop enviroment conf/core-site.xml：NameNode IP and Port conf/hdfs-site.xml：HDFS Data Block Setting conf/mapred-site.xml：JobTrackerIP and Port conf/masters：MasterIP conf/slaves：Slaves IP